2555670 has 32 divisors (see below), whose sum is σ = 6606432. Its totient is φ = 628992.

The previous prime is 2555669. The next prime is 2555687. The reversal of 2555670 is 765552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2887 + ... + 3666.

It is an arithmetic number, because the mean of its divisors is an integer number (206451).

2^2555670 is an apocalyptic number.

2555670 is an abundant number, since it is smaller than the sum of its proper divisors (4050762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555670 is a wasteful number, since it uses less digits than its factorization.

2555670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 2555670 is about 1598.6463023446. The cubic root of 2555670 is about 136.7209051687.

It can be divided in two parts, 255 and 5670, that multiplied together give a triangular number (1445850 = T₁₇₀₀).

The spelling of 2555670 in words is "two million, five hundred fifty-five thousand, six hundred seventy".